Fiber glass materials are made of molding silica and glass into fibers. They can with stand temperatures up to 200 C0 yet they are venerable to water. They are used for mild heat and acoustic insulation.
The panels are of dimensions 120 x 100 cm and their densities range from 32 to 64 kg/m3 .
They can be of no facing or with duct liner facing or smooth liner ones.